I test drove the new 991 C2S 2 weeks ago with the intention for it to replace my M3, but was wholly disappointed with the car. There is no way i am trading my E92 M3 for the 991 C2S even if they cost the same. In your case, since your M3 lease is up, it's probably ok to change for variety sake.
Current Rides: Frozen Grey F10 M5 DCT
- Frozen Grey E92 M3 Sold
- 458 Speciale on order. ETA Dec 2014